package com.lib.common.view;

import android.content.Context;
import android.graphics.drawable.Drawable;

import androidx.appcompat.widget.AppCompatAutoCompleteTextView;
import androidx.core.content.res.ResourcesCompat;

import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.CycleInterpolator;
import android.view.animation.TranslateAnimation;

import com.lib.common.R;

/**
 * @author 一叶丶枫凌
 * Created on 2017-05-23 11:07
 */
public class ClearEditText extends AppCompatAutoCompleteTextView implements View.OnFocusChangeListener, TextWatcher {
    private Drawable mClearDrawable;

    public ClearEditText(Context context) {
        super(context);
        init(context);
    }

    public ClearEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context);
    }

    public ClearEditText(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public void init(Context context) {
        // 获取EditText的DrawableRight,假如没有设置我们就使用默认的图片
        mClearDrawable = getCompoundDrawables()[2];
        if (mClearDrawable == null) {
            mClearDrawable = ResourcesCompat.getDrawable(getResources(), R.drawable.vc_delete, context.getTheme());
        }
        mClearDrawable.setBounds(0, 0, mClearDrawable.getIntrinsicWidth(), mClearDrawable.getIntrinsicHeight());
        setClearIconVisible(false);
        setOnFocusChangeListener(this);
        addTextChangedListener(this);
        setPadding(getPaddingLeft(), getPaddingTop(), 20, getPaddingBottom());
    }

    /**
     * 因为我们不能直接给EditText设置点击事件，所以我们用记住我们按下的位置来模拟点击事件 当我们按下的位置 在 EditText的宽度 -
     * 图标到控件右边的间距 - 图标的宽度 和 EditText的宽度 - 图标到控件右边的间距之间我们就算点击了图标，竖直方向没有考虑
     */
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (getCompoundDrawables()[2] != null) {
            if (event.getAction() == MotionEvent.ACTION_UP) {
                if (event.getX() > (getMeasuredWidth() - mClearDrawable.getIntrinsicWidth() * 2)) {
                    setText("");
                }
            }
        }
        return super.onTouchEvent(event);
    }

    /**
     * 当ClearEditText焦点发生变化的时候，判断里面字符串长度设置清除图标的显示与隐藏
     */
    @Override
    public void onFocusChange(View v, boolean hasFocus) {

        if (hasFocus) {
            setClearIconVisible(getText().length() > 0);
        } else {
            setClearIconVisible(false);
        }
    }

    @Override
    public void setEnabled(boolean b) {

        super.setEnabled(b);
        if (!b) {
            setClearIconVisible(false);
        }
    }

    /**
     * 设置清除图标的显示与隐藏，调用setCompoundDrawables为EditText绘制上去
     *
     * @param visible
     */
    public void setClearIconVisible(boolean visible) {

        Drawable right = visible ? mClearDrawable : null;
        setCompoundDrawables(getCompoundDrawables()[0], getCompoundDrawables()[1], right, getCompoundDrawables()[3]);
    }

    /**
     * 当输入框里面内容发生变化的时候回调的方法
     */
    @Override
    public void onTextChanged(CharSequence s, int start, int count, int after) {

        setClearIconVisible(s.length() > 0);
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {

    }

    @Override
    public void afterTextChanged(Editable s) {

    }

    @Override
    protected void onDetachedFromWindow() {
        removeTextChangedListener(this);
        super.onDetachedFromWindow();
    }

    /**
     * 设置晃动动画
     *
     * @param counts
     */
    public void setShakeAnimation(float counts) {

        Animation anim = new TranslateAnimation(0, 10, 0, 0);
        anim.setInterpolator(new CycleInterpolator(counts));
        anim.setDuration(1000);
        setAnimation(anim);
        // anim.start();
    }
}